Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
San Bernardino's weather in April, with an average high-temperature of an agreeable 71.4°F (21.9°C), subtly shifts from March's 66.9°F (19.4°C). During April, San Bernardino perceives a consistent contrast from the daytime highs, with an average low-temperature of 48.7°F (9.3°C).Humidity
In San Bernardino, the average relative humidity in April is 50%.Rainfall
In San Bernardino, California, in April, it is raining for 5.9 days, with typically 0.67" (17mm) of accumulated precipitation. In San Bernardino, during the entire year, the rain falls for 46.6 days and collects up to 6.18" (157mm) of precipitation.Snowfall
January, March through December are months without snowfall in San Bernardino.Daylight
The average length of the day in April is 13h and 4min.On the first day of the month, sunrise is at 6:35 am and sunset at 7:10 pm. On the last day of April, sunrise is at 5:59 am and sunset at 7:32 pm PDT.
Sunshine
In April, the average sunshine is 11.3h.UV index
In April, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.Note: In April, the maximum UV index of 5 translates into these guidelines:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in San Bernardino in April?
What is the average humidity in April in San Bernardino?
How many days does it rain in April in San Bernardino?
When it does not snow in San Bernardino?
What is the average length of the day in April in San Bernardino?
When are sunrise and sunset in April in San Bernardino?
How long on average sun shines in April in San Bernardino?
What is the UV index reading in April in San Bernardino?
Average temperature in April
San Bernardino, CA
- Average high temperature in April: 71.4°F
The warmest month (with the highest average high temperature) is August (91.9°F).
The month with the lowest average high temperature is December (59.9°F).
- Average low temperature in April: 48.7°F
The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is February (43.5°F).
Average pressure in April
San Bernardino, CA
- Average pressure in April: 29.94"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in April
San Bernardino, CA
- Average wind speed in April: 6mph
The windiest months (with the highest average wind speed) are April and May (6mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).
Average humidity in April
San Bernardino, CA
- Average humidity in April: 50%
The month with the highest relative humidity is February (53%).
The month with the lowest relative humidity is August (38%).
Average rainfall in April
San Bernardino, CA
- Average rainfall in April: 0.67"
The wettest month (with the highest rainfall) is December (1.42").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in April
San Bernardino, CA
- Average rainfall days in April: 5.9 days
The month with the highest number of rainy days is March (6.7 days).
The month with the least rainy days is June (1.2 days).
Average snowfall days in April
San Bernardino, CA
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in April /
Average sunshine in April
San Bernardino, CA
- Average daylight in April: 13h and 1min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in April: 11h and 2min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).
Average sunshine days in April
San Bernardino, CA
- Average sunshine days in April: 23.3 days
The months with the most sunshine days are June and October (27.9 days).
The month with the least sunshine days is February (21.7 days).
Average UV index in April
San Bernardino, CA
- Average UV index in April: 5
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in April
San Bernardino, CA
- Average cloud cover in April: 17
The months with the most cloud cover are February and December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in April
San Bernardino, CA
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
San Bernardino, California, USA
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